Inventor · disambiguated record
Clel H. Shafer
Also filed as: SHAFER CLEL H
3 granted patents·30 citations·filing 1974–1978
69Inventor score
Files withPHILLIPS PETROLEUM CO3
Top patents by PatentIndex Score
3 records- 0154US4156710AFabrication of a flange adapter for plastic pipePHILLIPS PETROLEUM CO·Filed 1974·Granted May 29, 1979·16 cites·6 claims
- 0246US4174248AProcess and apparatus for connecting plastic pipesPHILLIPS PETROLEUM CO·Filed 1978·Granted Nov 13, 1979·11 cites·6 claims
- 0331US3968000AMethod for making pipe end plugsPHILLIPS PETROLEUM CO·Filed 1975·Granted Jul 6, 1976·3 cites·7 claims
Join the waitlist — get patent alerts
Get an alert when Clel H. Shafer files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →